Osmocom GSM/GPRS/EGPRS transceiver, originally forked from OpenBTS transceiver. For building SDR based GSM BTS with osmo-bts-trx.
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Most parts copyright 2008-2011 Free Software Foundation.
Some parts copyright 2010 Kestrel Signal Processing, Inc.
Some parts copyright 2011 Range Networks, Inc.
Patent Laws
The use of this software to provide GSM services may result in the use of
patented technologies. The user of this software is required to take whatever
actions are necessary to avoid patent infringement.
"OpenBTS" is a registered trademark of Range Networks, Inc. (Range), a
California corporation. Range reserves the right to control the use of this
trademark. Do not use this trademark in commerce without permission and do not
rebrand OpenBTS under a different trademark.
Telecom and Radio Spectrum Laws
The primary function of OpenBTS is the provision of telecommunications service
over a radio link. This activity is heavily regulated nearly everywhere in
the world. Users of this software are expected to comply with local and national
regulations in the jurisdictions where this sortware is used with radio equipment.
Legal Summary
The user of this software is expected to comply with all applicable laws and
regulations, including patent laws, copyright laws, and telecommunications
The legal restrictions listed here are not necessarily exhaustive.
Note to US Government Users
The OpenBTS software applications and associated documentation are "Commercial
Item(s)," as that term is defined at 48 C.F.R. Section 2.101, consisting of
"Commercial Computer Software" and "Commercial Computer Software Documentation,"
as such terms are used in 48 C.F.R. 12.212 or 48 C.F.R. 227.7202, as
applicable. Consistent with 48 C.F.R. 12.212 or 48 C.F.R. Sections 227.7202-1
through 227.7202-4, as applicable, the Commercial Computer Software and
Commercial Computer Software Documentation are being licensed to U.S. Government
end users (a) only as Commercial Items and (b) with only those rights as are
granted to all other end users pursuant to the terms and conditions of GPLv3
and AGPLv3.
Note to US Government Contractors
GPL is not compatible with "government purpose rights" (GPR). If you receive
OpenBTS software under a GPL and deliver it under GPR, you will be in violation
of GPL and possibly subject to enforcement actions by the original authors and
copyright holders, including the Free Software Foundation, Inc.
Software Licensing and Distribution
A subset of OpenBTS is distributed publicly under AGPLv3. Range reserves the right to
distribute most of this source code other licenses as well. See the COPYING file
for more information on the license for this distribution.